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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-54560

32
FAUCET Score

Cloudreve is a self-hosted file management and sharing system. From 4.12.0 until 4.16.1, Cloudreve's OAuth access tokens are issued without the OAuth client_id claim, so the JWT verifier does not load token scopes into request context and RequiredScopes treats the request like non-scoped session authentication, allowing a low-scope OAuth access token to call APIs requiring higher scopes such as file, share, workflow, user setting, WebDAV account, and potentially admin scopes. This issue is fixed in version 4.16.1.

First published: Jul 15, 2026Last modified: Jul 15, 2026

Impacted Technologies

VendorProductVersion(s)CPE
CloudreveCloudreve
>= 4.12.0, < 4.16.1CNA affected

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 15th percentile among its peer group of 890 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/cloudreve/Cloudreve/v4Fixed in: 4.0.0-20260606015557-ed20843dc3df

Vendor Advisories (1)

goGHSA-vgj4-345g-jcf8high

Cloudreve: OAuth access tokens bypass scope enforcement due to missing client_id claim

Jul 20, 2026

References

github.com / cloudreve/cloudreve/commit/ed20843dc3df20a25fcaf6b538647e11c4d68d87
github.com / cloudreve/cloudreve/releases/tag/4.16.1
github.com / cloudreve/cloudreve/security/advisories/GHSA-vgj4-345g-jcf8